1993 Transportation Conformity Rule
Federal Registered Conformity Final Rule and Proposed Rule.
- Final Rule: Criteria and Procedures for Determining Conformity to State or Federal Implementation Plans of Transportation Plans, Programs, and Projects Funded or Approved Under Title 23 U.S.C. or the Federal Transit Act (pdf)
- Proposed Rule: Criteria and Procedures for Determining Conformity to State or Federal Implementation Plans of Transportation Plans, Programs, and Projects Funded or Approved Under Title 23 U.S.C. or the Federal Transit Act (pdf)